CodeHS vs OneCompiler

CodeHS provides computer science curriculum and classroom tools for K–12 teachers, students and schools. Its catalog includes more than 100 customizable, standards-aligned courses across computer science, cybersecurity, artificial intelligence and digital literacy. The browser-based editor supports more than 10 languages, including Python, Java, JavaScript and C++. Classroom tools include autograders, in-editor help, code history and a blocks-to-text experience. Its learning management system gives teachers visibility into class progress, assignment grading and students' coding process. Listed AI features include hints, grading, Ask AI and Vibe Coding; the free-versus-Pro comparison identifies AI grading and hints as Pro features. The permanent Free teacher plan requires no credit card and has no per-student fees, but includes no downloads. Individual Learner All Access costs $99 a month, billed monthly, or $990 a year, billed annually. CodeHS says it is not an accredited school or online course provider, so Individual Learner students do not receive official grades or academic credit upon completion. Most integrations require a school license.

OneCompiler is an online environment for writing, running and sharing code, available on the web and Android. It supports more than 60 programming languages, plus web technologies and databases such as MySQL, MongoDB and PostgreSQL. Its free plan includes unlimited code executions and 20 AI credits per day. OneCompiler Studio runs Visual Studio Code in a browser with a Linux container, terminal, package manager, debugger and persistent workspaces; supported projects can be deployed to a live URL and shared by link. The service also offers code execution APIs and embeddable editor, challenge, Studio and AI interview capabilities. Its LMS integration uses a JWT token and requires an email address and name to create or sign in a user. OneCompiler supports private projects, real-time collaboration, public sharing and custom domains. The company says it helps over 12.8 million developers worldwide and describes use by LLM companies, colleges, EdTech providers and interview companies. Organizations are being retired; new ones cannot be created and no further features are planned for them.